15.- To finish select Option 2. Normal Mode Boot and select 1. Yes to exit from System Management Services. The partition will boot from the Virtual Media.

16.- After selecting the console and the language, select the option 2. Change / Show Installation Settings and Install from the main menu.

17.- Check that Method of Installation have "Migration" and Disk where you want to install have "hdisk0" values.This part is very important, because you can verify if the media recognizes the rootvg disk in 5.3 and is ready for the upgrade.

18.- After this screen the only thing that is necessary to know is how to change the virtual media when is required:

19.- To change the DVD 1 for DVD 2 go back to the HMC, Virtual Storage Management, select the radio button of DVD 2 and click in the drop down menu Select Action, then click in "Modify Virtual MediaAssignment".

20.- In the pop-up window of media 2, click in the existing virtual media and in the "Force reassignment of running partitions" check box.

21.- Now press enter in the console window and the installation will continue.

22.- After the migration process finishes, accept the software license and you are ready to work, now in AIX 7.1!. Cheers!